What do providers participating in a PPO generally receive in exchange for accepting lower fees?

At the scene of a multiple-casualty incident caused by a weapon of mass destruction, the AEMT's FIRST priority is:

A) identifying the agent used. B) ensuring the safety of yourself and your partner. C) establishing a communications system. D) estimating the number of dead and injured.

Water has hydrogen bonds, which give it its unique properties

Indicate whether the statement is true or false